Deep-pan internal filter, external spin-on filter, and pan gasket for the Allison 1000/2000 behind the 6.6L Duramax in 2010-2019 Silverado and Sierra HD.
If you own a 2010-2019 Silverado or Sierra 2500HD or 3500HD with the 6.6L Duramax and the Allison automatic, and the transmission pan on your truck is the deep style, this is the service kit built for it. Owners usually land here for one of two reasons: a scheduled fluid and filter service on a truck that tows hard, or a deep pan that was just bolted on and now needs a filter long enough to reach the bottom of it. The kit puts three parts in one box: the long deep-pan internal filter (replaces GM 29542824), the external spin-on filter (replaces GM 29539579) and a molded NBR rubber pan gasket with the bolt holes already punched.
The Allison pump draws fluid from the sump through the internal filter, which plugs into the pump pickup bore. In a deep pan the fluid sits lower, so the filter has to be longer to keep its inlet submerged. A standard-length filter in a deep sump leaves the inlet hanging above the floor of the pan. On a steep grade, a hard launch or a sharp turn the fluid sloshes away from the inlet, the pump gulps air, and line pressure dips for an instant. Aerated fluid foams, runs hotter and gives the clutches a soft, slow apply. The external spin-on is a second, finer stage: it cleans the control main circuit that feeds the solenoids and valve body, and Allison puts it on a shorter change interval than the fluid itself.
Look at the pan first. A deep pan hangs noticeably lower than the stock pan and holds more fluid, and Allison lists more fluid for the standard sump than for the shallow one, so the filter has to match the pan that is on the truck, not the model year. Pull the dipstick and check level hot, in Neutral at idle on level ground. Read codes before blaming the filter; a stored speed sensor or pressure code points somewhere else. Our Allison 1000 fluid and filter service guide walks through the capacities, the hot check and the change intervals from the Allison operator's manual, and the limp mode guide covers what to check if the truck is stuck in one gear.
This kit is listed for Chevrolet Silverado 2500HD and 3500HD and GMC Sierra 2500HD and 3500HD, 2010 through 2019, with the 6.6L Duramax, the Allison 1000/2000 six-speed and a deep pan. It is the wrong kit for a shallow-pan truck, because the long filter will not fit under a short pan. Trucks get pans swapped over their life, so check what is actually bolted on. If you are unsure, send us the year and VIN and tell us whether the pan is stock or aftermarket. Browse the rest of the Allison transmission parts for pans, solenoids and valve bodies, or see the Allison 1000 deep transmission pan if you are converting.
If you only need the external filter between pan services, the PPE double-deep spin-on filter fits the same port.
| Kit contents | Deep-style internal filter, external spin-on filter, pan gasket |
| Fits transmission | Allison 1000 / 2000 Series (deep pan) |
| Vehicles | Chevy Silverado & GMC Sierra 2500HD/3500HD, 2010-2019, 6.6L Duramax |
| Replaces | GM 29542824 (internal), 29539579 (spin-on) |
| Gasket material | NBR rubber, pre-punched bolt holes |
| Item weight | 2.3 lb |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. The internal filter in this kit is the long deep-pan style and needs the extra depth of a deep pan. A shallow-pan truck needs the shorter filter, so check which pan is on the truck before ordering.
The internal filter replaces GM 29542824 and the external spin-on replaces GM 29539579. The pan gasket is a molded NBR rubber gasket with pre-punched bolt holes.
Use an Allison-approved fluid; TES 668 fluid such as TranSynd 668 is Allison's current recommended spec. Allison lists a 10.6 quart refill for the standard sump, but always finish with a hot level check because fluid stays in the converter and cooler lines.
Allison says to lubricate the gasket, thread the filter on by hand until the gasket touches, then turn it one full turn. Going past one turn can damage the filter.
Allison puts the spin-on filter on a 50,000 mile, 2,000 hour or 24 month interval for general vocation on TES 668 or TES 295 fluid, which is shorter than the fluid interval. Severe-duty trucks and trucks on older TES 389 fluid change sooner. The internal filter is normally an overhaul item, but it gets replaced whenever you convert to a deep pan.
